Ideal Enterprise resource planning

Ideally, ERP delivers a single database that contains all data for the software modules, which would include:

Manufacturing
Engineering, Bills of Material, Scheduling, Capacity, Workflow Management, Quality Control, Cost Management, Manufacturing Process, Manufacturing Projects, Manufacturing Flow

Supply Chain Management
Inventory, Order Entry, Purchasing, Product Configurator, Supply Chain Planning, Supplier Scheduling, Inspection of goods, Claim Processing, Commission Calculation

Financials
General Ledger, Cash Management, Accounts Payable, Accounts Receivable, Fixed Assets

Projects
Costing, Billing, Time and Expense, Activity Management

Human Resources
Human Resources, Payroll, Training, Time & Attendance, Rostering, Benefits

Customer Relationship Management
Sales and Marketing, Commissions, Service, Customer Contact and Call Center support

Data Warehouse
and various Self-Service interfaces for Customers, Suppliers, and Employees

http://en.wikipedia.org/wiki/Enterprise_Resource_Planning